<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<img src="img/QQ截图20200929093137.png" title="图片"/>
		<script>
			
		var k=document.getElementsByTagName("img")[0];
		alert(toString(k.title));
		k.src="img/QQ截图20200929093158.png";
			
		</script>
		
		
	</body>
</html>
